Window weblog 7Tutorials has done another round of their web browser battery usage tests, and the results are pretty much the same as usual: Internet Explorer keeps your computer running longer.

Which version of Internet Explorer (Touch or Desktop) depends on your hardware, but on each machine, Internet Explorer came out ahead. In some cases, by a pretty big margin—for example, Chrome lasted nearly two hours shorter on a Toshiba tablet, and about an hour shorter on the Surface Pro 2.

Of course, that doesn't mean you should always use Internet Explorer, but if you're somewhere without an outlet, it may be worth a temporary switch. Check out 7Tutorial's most recent round of tests at the link below.

Whitson Gordon

We regularly test the four most popular browsers for speed, but what about battery life? If you're on a laptop, an extra 20 minutes can make a pretty big difference. Weblog 7Tutorials did a battery life test of each browser, and found that Internet Explorer was the most likely to give you a noticeable battery boost.

They used the Peacekeeper battery test on Internet Explorer, Chrome, Firefox, and Opera, on a clean install of Windows 7 using the Power Saver power plan, and run three times to get an average for each browser. Internet Explorer 9 came out ahead, providing 104 minutes of battery life in the Peacekeeper test, with Opera not far behind at 100 minutes. Firefox lagged behind a bit at 92 minutes, while Chrome got almost 20 minutes less, lasting only 85 minutes.

Obviously, your mileage may vary on this, but it's a good thing to know if you're in a bind and need to squeeze every ounce of battery from your laptop. Hit the link to read more about their methodology and the results.